%------------------------------------------------------------------------------ % File : Otter---3.3 % Problem : LAT397-2 : TPTP v8.1.0. Released v8.1.0. % Transfm : none % Format : tptp:raw % Command : otter-tptp-script %s % Computer : n024.cluster.edu % Model : x86_64 x86_64 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz % Memory : 8042.1875MB % OS : Linux 3.10.0-693.el7.x86_64 % CPULimit : 300s % WCLimit : 300s % DateTime : Wed Jul 27 13:03:15 EDT 2022 % Result : Unknown 1.94s 2.12s % Output : None % Verified : % SZS Type : - % Comments : %------------------------------------------------------------------------------ %----No solution output by system %------------------------------------------------------------------------------ %----ORIGINAL SYSTEM OUTPUT % 0.06/0.12 % Problem : LAT397-2 : TPTP v8.1.0. Released v8.1.0. % 0.06/0.12 % Command : otter-tptp-script %s % 0.13/0.33 % Computer : n024.cluster.edu % 0.13/0.33 % Model : x86_64 x86_64 % 0.13/0.33 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz % 0.13/0.33 % Memory : 8042.1875MB % 0.13/0.33 % OS : Linux 3.10.0-693.el7.x86_64 % 0.13/0.33 % CPULimit : 300 % 0.13/0.33 % WCLimit : 300 % 0.13/0.33 % DateTime : Wed Jul 27 08:16:10 EDT 2022 % 0.13/0.33 % CPUTime : % 1.71/1.92 ----- Otter 3.3f, August 2004 ----- % 1.71/1.92 The process was started by sandbox on n024.cluster.edu, % 1.71/1.92 Wed Jul 27 08:16:10 2022 % 1.71/1.92 The command was "./otter". The process ID is 19381. % 1.71/1.92 % 1.71/1.92 set(prolog_style_variables). % 1.71/1.92 set(auto). % 1.71/1.92 dependent: set(auto1). % 1.71/1.92 dependent: set(process_input). % 1.71/1.92 dependent: clear(print_kept). % 1.71/1.92 dependent: clear(print_new_demod). % 1.71/1.92 dependent: clear(print_back_demod). % 1.71/1.92 dependent: clear(print_back_sub). % 1.71/1.92 dependent: set(control_memory). % 1.71/1.92 dependent: assign(max_mem, 12000). % 1.71/1.92 dependent: assign(pick_given_ratio, 4). % 1.71/1.92 dependent: assign(stats_level, 1). % 1.71/1.92 dependent: assign(max_seconds, 10800). % 1.71/1.92 clear(print_given). % 1.71/1.92 % 1.71/1.92 list(usable). % 1.71/1.92 0 [] A=A. % 1.71/1.92 0 [] meet(X,Y)=meet(Y,X). % 1.71/1.92 0 [] meet(X,meet(Y,Z))=meet(meet(X,Y),Z). % 1.71/1.92 0 [] join(X,Y)=join(Y,X). % 1.71/1.92 0 [] join(X,join(Y,Z))=join(join(X,Y),Z). % 1.71/1.92 0 [] join(X,meet(X,Y))=X. % 1.71/1.92 0 [] meet(X,join(X,Y))=X. % 1.71/1.92 0 [] upme(X,Y,Z)=meet(X,join(Y,Z)). % 1.71/1.92 0 [] lome(X,Y,Z)=join(meet(X,Y),meet(X,Z)). % 1.71/1.92 0 [] upjo(X,Y,Z)=meet(join(X,Y),join(X,Z)). % 1.71/1.92 0 [] lojo(X,Y,Z)=join(X,meet(Y,Z)). % 1.71/1.92 0 [] upme(meet(a,Z1),Z2,Z3)=lome(meet(a,Z1),Z2,Z3). % 1.71/1.92 0 [] upme(a,X2,Y2)!=upme(a,X2,Z2)|upme(X2,Y2,Z2)=lome(X2,Y2,Z2). % 1.71/1.92 0 [] lome(x,y,z)!=meet(x,join(meet(y,join(x,z)),meet(z,join(x,y)))). % 1.71/1.92 end_of_list. % 1.71/1.92 % 1.71/1.92 SCAN INPUT: prop=0, horn=1, equality=1, symmetry=0, max_lits=2. % 1.71/1.92 % 1.71/1.92 This is a Horn set with equality. The strategy will be % 1.71/1.92 Knuth-Bendix and hyper_res, with positive clauses in % 1.71/1.92 sos and nonpositive clauses in usable. % 1.71/1.92 % 1.71/1.92 dependent: set(knuth_bendix). % 1.71/1.92 dependent: set(anl_eq). % 1.71/1.92 dependent: set(para_from). % 1.71/1.92 dependent: set(para_into). % 1.71/1.92 dependent: clear(para_from_right). % 1.71/1.92 dependent: clear(para_into_right). % 1.71/1.92 dependent: set(para_from_vars). % 1.71/1.92 dependent: set(eq_units_both_ways). % 1.71/1.92 dependent: set(dynamic_demod_all). % 1.71/1.92 dependent: set(dynamic_demod). % 1.71/1.92 dependent: set(order_eq). % 1.71/1.92 dependent: set(back_demod). % 1.71/1.92 dependent: set(lrpo). % 1.71/1.92 dependent: set(hyper_res). % 1.71/1.92 dependent: clear(order_hyper). % 1.71/1.92 % 1.71/1.92 ------------> process usable: % 1.71/1.92 ** KEPT (pick-wt=18): 1 [] upme(a,A,B)!=upme(a,A,C)|upme(A,B,C)=lome(A,B,C). % 1.71/1.92 ** KEPT (pick-wt=18): 3 [copy,2,flip.1] meet(x,join(meet(y,join(x,z)),meet(z,join(x,y))))!=lome(x,y,z). % 1.71/1.92 % 1.71/1.92 ------------> process sos: % 1.71/1.92 ** KEPT (pick-wt=3): 4 [] A=A. % 1.71/1.92 ** KEPT (pick-wt=7): 5 [] meet(A,B)=meet(B,A). % 1.71/1.92 ** KEPT (pick-wt=11): 7 [copy,6,flip.1] meet(meet(A,B),C)=meet(A,meet(B,C)). % 1.71/1.92 ---> New Demodulator: 8 [new_demod,7] meet(meet(A,B),C)=meet(A,meet(B,C)). % 1.71/1.92 ** KEPT (pick-wt=7): 9 [] join(A,B)=join(B,A). % 1.71/1.92 ** KEPT (pick-wt=11): 11 [copy,10,flip.1] join(join(A,B),C)=join(A,join(B,C)). % 1.71/1.92 ---> New Demodulator: 12 [new_demod,11] join(join(A,B),C)=join(A,join(B,C)). % 1.71/1.92 ** KEPT (pick-wt=7): 13 [] join(A,meet(A,B))=A. % 1.71/1.92 ---> New Demodulator: 14 [new_demod,13] join(A,meet(A,B))=A. % 1.71/1.92 ** KEPT (pick-wt=7): 15 [] meet(A,join(A,B))=A. % 1.71/1.92 ---> New Demodulator: 16 [new_demod,15] meet(A,join(A,B))=A. % 1.71/1.92 ** KEPT (pick-wt=10): 18 [copy,17,flip.1] meet(A,join(B,C))=upme(A,B,C). % 1.71/1.92 ---> New Demodulator: 19 [new_demod,18] meet(A,join(B,C))=upme(A,B,C). % 1.71/1.92 ** KEPT (pick-wt=12): 21 [copy,20,flip.1] join(meet(A,B),meet(A,C))=lome(A,B,C). % 1.71/1.92 ---> New Demodulator: 22 [new_demod,21] join(meet(A,B),meet(A,C))=lome(A,B,C). % 1.71/1.92 ** KEPT (pick-wt=11): 24 [copy,23,demod,19,flip.1] upme(join(A,B),A,C)=upjo(A,B,C). % 1.71/1.92 ---> New Demodulator: 25 [new_demod,24] upme(join(A,B),A,C)=upjo(A,B,C). % 1.71/1.92 ** KEPT (pick-wt=10): 27 [copy,26,flip.1] join(A,meet(B,C))=lojo(A,B,C). % 1.71/1.92 ---> New Demodulator: 28 [new_demod,27] join(A,meet(B,C))=lojo(A,B,C). % 1.71/1.92 ** KEPT (pick-wt=13): 29 [] upme(meet(a,A),B,C)=lome(meet(a,A),B,C). % 1.71/1.92 ---> New Demodulator: 30 [new_demod,29] upme(meet(a,A),B,C)=lome(meet(a,A),B,C). % 1.71/1.92 Following clause subsumed by 4 during input processing: 0 [copy,4,flip.1] A=A. % 1.71/1.92 Following clause subsumed by 5 during input processing: 0 [copy,5,flip.1] meet(A,B)=meet(B,A). % 1.71/1.92 >>>> Starting back demodulation with 8. % 1.71/1.92 Following clause subsumed by 9 during input processing: 0 [copy,9,flip.1] join(A,B)=join(B,A). % 1.71/1.92 >>>> Starting back demodulation with 12. % 1.71/1.92 >>>> Starting back demodulation with 14. % 1.71/1.92 >>>> Starting back demodulation with 16. % 1.71/1.92 >>>> Starting back demodulation with 19. % 1.71/1.92 >> back demodulating 15 with 19. % 1.71/1.92 >> back demodulating 3 with 19. % 1.94/2.12 >>>> Starting back demodulation with 22. % 1.94/2.12 >>>> Starting back demodulation with 25. % 1.94/2.12 >>>> Starting back demodulation with 28. % 1.94/2.12 >> back demodulating 21 with 28. % 1.94/2.12 >> back demodulating 13 with 28. % 1.94/2.12 >>>> Starting back demodulation with 30. % 1.94/2.12 >>>> Starting back demodulation with 32. % 1.94/2.12 ** KEPT (pick-wt=11): 37 [copy,34,flip.1] lome(A,B,C)=lojo(meet(A,B),A,C). % 1.94/2.12 >>>> Starting back demodulation with 36. % 1.94/2.12 Following clause subsumed by 34 during input processing: 0 [copy,37,flip.1] lojo(meet(A,B),A,C)=lome(A,B,C). % 1.94/2.12 % 1.94/2.12 ======= end of input processing ======= % 1.94/2.12 % 1.94/2.12 =========== start of search =========== % 1.94/2.12 % 1.94/2.12 % 1.94/2.12 Resetting weight limit to 12. % 1.94/2.12 % 1.94/2.12 % 1.94/2.12 Resetting weight limit to 12. % 1.94/2.12 % 1.94/2.12 sos_size=367 % 1.94/2.12 % 1.94/2.12 % 1.94/2.12 Resetting weight limit to 9. % 1.94/2.12 % 1.94/2.12 % 1.94/2.12 Resetting weight limit to 9. % 1.94/2.12 % 1.94/2.12 sos_size=83 % 1.94/2.12 % 1.94/2.12 Search stopped because sos empty. % 1.94/2.12 % 1.94/2.12 % 1.94/2.12 Search stopped because sos empty. % 1.94/2.12 % 1.94/2.12 ============ end of search ============ % 1.94/2.12 % 1.94/2.12 -------------- statistics ------------- % 1.94/2.12 clauses given 431 % 1.94/2.12 clauses generated 29298 % 1.94/2.12 clauses kept 1306 % 1.94/2.12 clauses forward subsumed 20683 % 1.94/2.12 clauses back subsumed 21 % 1.94/2.12 Kbytes malloced 5859 % 1.94/2.12 % 1.94/2.12 ----------- times (seconds) ----------- % 1.94/2.12 user CPU time 0.19 (0 hr, 0 min, 0 sec) % 1.94/2.12 system CPU time 0.01 (0 hr, 0 min, 0 sec) % 1.94/2.12 wall-clock time 2 (0 hr, 0 min, 2 sec) % 1.94/2.12 % 1.94/2.12 Process 19381 finished Wed Jul 27 08:16:12 2022 % 1.94/2.12 Otter interrupted % 1.94/2.12 PROOF NOT FOUND %------------------------------------------------------------------------------